You’ll need to set aside a day for this, but if you like caves or have never visited one, The Marble Arch Caves won’t disappoint. In nearby County Fermanagh, the Marble Arch Caves Global Geopark is host to one of Europe’s finest show caves.Marble Arch Caves invites visitors to explore a fascinating, natural underworld of rivers, waterfalls, winding passages and lofty chambers. Lively and informative guides conduct tours that pass an impressive variety of delicate cave formations, winding passages, lofty chambers with stalactites that glisten overhead.